Analysis of oxygen shell splitting in hydrothermally grown single crystal ThO2(200)
Single crystals of ThO2 have been synthesized using hydrothermal growth and studied using the X‐ray absorption fine structure (XAFS) technique. The extended X‐ray absorption fine structure (EXAFS) has been extracted from the XAFS and analyzed using a novel, computational Latin hypercube sampling met...
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Veröffentlicht in: | Physica status solidi. PSS-RRL. Rapid research letters 2015-11, Vol.9 (11), p.668-672 |
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creator | Kelly, T. D. Petrosky, J. C. McClory, J. W. Mann, J. M. Kolis, J. W. |
description | Single crystals of ThO2 have been synthesized using hydrothermal growth and studied using the X‐ray absorption fine structure (XAFS) technique. The extended X‐ray absorption fine structure (EXAFS) has been extracted from the XAFS and analyzed using a novel, computational Latin hypercube sampling method. The methodology not only confirms the expected space group and crystal structure, it also identifies the origin of a previously reported split O shell. Since EXAFS is a local order analysis technique, the O shell splitting is identified as an O atom occupying an interstitial site. This result is significant for examining O2– transport in a ThO2 matrix and corroborating research indicating partial Th 5f occupancy that is similar to hyper‐stoichiometric UO2+x compounds. (© 2015 WILEY‐VCH Verlag GmbH &Co. KGaA, Weinheim)
Extended X‐ray photoemission fine structure data of hydrothermally synthesized ThO2 has been interpreted. The data analysis included developing a novel Latin hypercube analysis tool used to identify a point defect structure, agreeing with recent experimental and theoretical research. Results are important to the understanding of the subtle role of 5f electrons in ThO2 influencing O migration applications (e.g. solid state electrolytes) and future studies of mixed ThxUyO2 oxide fuel stabilization. |
doi_str_mv | 10.1002/pssr.201510235 |
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Extended X‐ray photoemission fine structure data of hydrothermally synthesized ThO2 has been interpreted. The data analysis included developing a novel Latin hypercube analysis tool used to identify a point defect structure, agreeing with recent experimental and theoretical research. Results are important to the understanding of the subtle role of 5f electrons in ThO2 influencing O migration applications (e.g. solid state electrolytes) and future studies of mixed ThxUyO2 oxide fuel stabilization.</description><identifier>ISSN: 1862-6254</identifier><identifier>EISSN: 1862-6270</identifier><identifier>DOI: 10.1002/pssr.201510235</identifier><language>eng</language><publisher>Berlin: WILEY-VCH Verlag Berlin GmbH</publisher><subject>actinides ; Data analysis ; Hydrology ; latin hypercubes ; O defects ; Oxygen ; Single crystals ; Thermal energy ; ThO2 ; X-ray absorption fine structure</subject><ispartof>Physica status solidi. PSS-RRL. Rapid research letters, 2015-11, Vol.9 (11), p.668-672</ispartof><rights>2015 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim</rights><rights>2015 WILEY-VCH Verlag GmbH &Co. KGaA, Weinheim</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fpssr.201510235$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fpssr.201510235$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids></links><search><creatorcontrib>Kelly, T. D.</creatorcontrib><creatorcontrib>Petrosky, J. C.</creatorcontrib><creatorcontrib>McClory, J. W.</creatorcontrib><creatorcontrib>Mann, J. M.</creatorcontrib><creatorcontrib>Kolis, J. W.</creatorcontrib><title>Analysis of oxygen shell splitting in hydrothermally grown single crystal ThO2(200)</title><title>Physica status solidi. PSS-RRL. Rapid research letters</title><addtitle>Phys. Status Solidi RRL</addtitle><description>Single crystals of ThO2 have been synthesized using hydrothermal growth and studied using the X‐ray absorption fine structure (XAFS) technique. The extended X‐ray absorption fine structure (EXAFS) has been extracted from the XAFS and analyzed using a novel, computational Latin hypercube sampling method. The methodology not only confirms the expected space group and crystal structure, it also identifies the origin of a previously reported split O shell. Since EXAFS is a local order analysis technique, the O shell splitting is identified as an O atom occupying an interstitial site. This result is significant for examining O2– transport in a ThO2 matrix and corroborating research indicating partial Th 5f occupancy that is similar to hyper‐stoichiometric UO2+x compounds. (© 2015 WILEY‐VCH Verlag GmbH &Co. KGaA, Weinheim)
Extended X‐ray photoemission fine structure data of hydrothermally synthesized ThO2 has been interpreted. The data analysis included developing a novel Latin hypercube analysis tool used to identify a point defect structure, agreeing with recent experimental and theoretical research. Results are important to the understanding of the subtle role of 5f electrons in ThO2 influencing O migration applications (e.g. solid state electrolytes) and future studies of mixed ThxUyO2 oxide fuel stabilization.</description><subject>actinides</subject><subject>Data analysis</subject><subject>Hydrology</subject><subject>latin hypercubes</subject><subject>O defects</subject><subject>Oxygen</subject><subject>Single crystals</subject><subject>Thermal energy</subject><subject>ThO2</subject><subject>X-ray absorption fine structure</subject><issn>1862-6254</issn><issn>1862-6270</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNo9kM9LwzAUx4soOKdXzwEveujMj6ZJjkN0CsOpnegtpG2ydmZtTTq2_vd2THp67_E-3wfvEwTXCE4QhPi-8d5NMEQUQUzoSTBCPMZhjBk8HXoanQcX3q8hpIJFZBQk00rZzpce1AbU-26lK-ALbS3wjS3btqxWoKxA0eWubgvtNsraDqxcveu5fmk1yFznW2XBsljgWwzh3WVwZpT1-uq_joPPp8flw3M4X8xeHqbzsMQM0TCliBhKVaoQz7M4pSxVigvDDBU6yuMIGYgINxzD3KiIcCwYpiynHOUZzwQZBzfHu42rf7fat3Jdb13_j5eIRZGAAkWkp8SR2pVWd7Jx5Ua5TiIoD9bkwZocrMm3JPkYpj4bHrOlb_V-yCr3I2NGGJVfrzOJGf9OkvdEQvIHavlyOQ</recordid><startdate>201511</startdate><enddate>201511</enddate><creator>Kelly, T. D.</creator><creator>Petrosky, J. C.</creator><creator>McClory, J. W.</creator><creator>Mann, J. M.</creator><creator>Kolis, J. W.</creator><general>WILEY-VCH Verlag Berlin GmbH</general><general>WILEY‐VCH Verlag Berlin GmbH</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>201511</creationdate><title>Analysis of oxygen shell splitting in hydrothermally grown single crystal ThO2(200)</title><author>Kelly, T. D. ; Petrosky, J. C. ; McClory, J. W. ; Mann, J. M. ; Kolis, J. W.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i2715-b513f55aba18dc6b57baa89f7f59e4d641f0138f820dfa438297257d581dc8c93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>actinides</topic><topic>Data analysis</topic><topic>Hydrology</topic><topic>latin hypercubes</topic><topic>O defects</topic><topic>Oxygen</topic><topic>Single crystals</topic><topic>Thermal energy</topic><topic>ThO2</topic><topic>X-ray absorption fine structure</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kelly, T. D.</creatorcontrib><creatorcontrib>Petrosky, J. C.</creatorcontrib><creatorcontrib>McClory, J. W.</creatorcontrib><creatorcontrib>Mann, J. M.</creatorcontrib><creatorcontrib>Kolis, J. W.</creatorcontrib><collection>Istex</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physica status solidi. PSS-RRL. Rapid research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kelly, T. D.</au><au>Petrosky, J. C.</au><au>McClory, J. W.</au><au>Mann, J. M.</au><au>Kolis, J. W.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Analysis of oxygen shell splitting in hydrothermally grown single crystal ThO2(200)</atitle><jtitle>Physica status solidi. PSS-RRL. Rapid research letters</jtitle><addtitle>Phys. Status Solidi RRL</addtitle><date>2015-11</date><risdate>2015</risdate><volume>9</volume><issue>11</issue><spage>668</spage><epage>672</epage><pages>668-672</pages><issn>1862-6254</issn><eissn>1862-6270</eissn><abstract>Single crystals of ThO2 have been synthesized using hydrothermal growth and studied using the X‐ray absorption fine structure (XAFS) technique. The extended X‐ray absorption fine structure (EXAFS) has been extracted from the XAFS and analyzed using a novel, computational Latin hypercube sampling method. The methodology not only confirms the expected space group and crystal structure, it also identifies the origin of a previously reported split O shell. Since EXAFS is a local order analysis technique, the O shell splitting is identified as an O atom occupying an interstitial site. This result is significant for examining O2– transport in a ThO2 matrix and corroborating research indicating partial Th 5f occupancy that is similar to hyper‐stoichiometric UO2+x compounds. (© 2015 WILEY‐VCH Verlag GmbH &Co. KGaA, Weinheim)
Extended X‐ray photoemission fine structure data of hydrothermally synthesized ThO2 has been interpreted. The data analysis included developing a novel Latin hypercube analysis tool used to identify a point defect structure, agreeing with recent experimental and theoretical research. Results are important to the understanding of the subtle role of 5f electrons in ThO2 influencing O migration applications (e.g. solid state electrolytes) and future studies of mixed ThxUyO2 oxide fuel stabilization.</abstract><cop>Berlin</cop><pub>WILEY-VCH Verlag Berlin GmbH</pub><doi>10.1002/pssr.201510235</doi><tpages>5</tpages></addata></record> |
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subjects | actinides Data analysis Hydrology latin hypercubes O defects Oxygen Single crystals Thermal energy ThO2 X-ray absorption fine structure |
title | Analysis of oxygen shell splitting in hydrothermally grown single crystal ThO2(200) |
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